Title (en)

VOLTAGE-MONITORING DEVICE FOR TWO DIFFERENT SUPPLY VOLTAGES OF AN ELECTRONIC APPARATUS

Title (de)

SPANNUNGS-ÜBERWACHUNGSEINRICHTUNG FÜR ZWEI UNTERSCHIEDLICHE VERSORGUNGSSPANNUNGEN EINES ELEKTRONISCHEN GERÄTS

Title (fr)

DISPOSITIF DE SURVEILLANCE DE LA TENSION POUR DEUX TENSIONS D'ALIMENTATION DIFFERENTES D'UN APPAREIL ELECTRONIQUE

Publication

EP 1055128 A1 20001129 (DE)

Application

EP 99913106 A 19990304

Priority

• DE 9900574 W 19990304
• DE 19814696 A 19980401

Abstract (en)

[origin: DE19814696C1] The voltage monitoring device uses a rationally operating A/D converter (ADC) with a reference input (Ref) coupled to the larger voltage (U1) of the 2 voltages to be monitored and a measuring input (A) coupled to the smaller voltage (U2) of the 2 voltages to be monitored. The output of the A/D converter is fed to a window comparator (K) for comparison with given limit values, providing a reset signal (Res2) when the higher limit value is exceeded or the lower limit value is not reached.

IPC 1-7

G01R 19/165; G01R 31/40

IPC 8 full level

G06F 1/24 (2006.01); G06F 1/30 (2006.01)

CPC (source: EP US)

G06F 1/24 (2013.01 - EP US); G06F 1/30 (2013.01 - EP US)

Citation (search report)

See references of WO 9951992A1

Designated contracting state (EPC)

FR GB

DOCDB simple family (publication)

DE 19814696 C1 19990708; EP 1055128 A1 20001129; EP 1055128 B1 20010926; KR 100533784 B1 20051207; KR 20010042313 A 20010525; US 6456086 B1 20020924; WO 9951992 A1 19991014

DOCDB simple family (application)

DE 19814696 A 19980401; DE 9900574 W 19990304; EP 99913106 A 19990304; KR 20007010862 A 20000929; US 67743400 A 20001002